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Dead Spectrum diagnosis and desolderingI have two dead Spectrums - one I'm pretty sure is caused by bad memory, and the other - well, perhaps a bad ROM, perhaps a bad CPU (it gets halfway …
... through the 'boot' process before random pixels start to change state ... -
Madness or inaccurate docs: RR r/RL r?According to the Z80 User's Manual, the instruction RR r/RL r should rotate the carry flag into bit 0 or bit 7 of the register in question (bit 0 or …
According to the Z80 User's Manual, the instruction ... be seen again. Buggy Mostek Z80, or buggy documentation? -
New Opus Discovery tool addedFinally, after some years wait, a new [B]Opus Discovery[/B] tool, [URL="ftp://ftp.worldofspectrum.org/pub/sinclair/tools/pc/OpusRead_v200.zip"][U]Opu…
... any originals, nor sequential or random access files. If someone has ... -
BETA Test in Progress[url]http://www.delhez.demon.nl/[/url] BETA release 13A provides a handy token key for the popular quote character. Also, performance will improve …
... of RAM at 8k xsby Z80 // plus 8k more (for character ... -
When could Speccy have been born?Just a pondering excercise for those that know more about the different types of chips in the Spectrum than I. Whilst browsing the z80 page on wiki …
... than I. Whilst browsing the z80 page on wiki last night ... away to see that the z80 started it`s life in ... -
+3 Scart on LCD vs CRTJust got a very nice condition +3 given for christmas, along with a new RGB scart lead from ebay (I believe it's a guy in Poland on here who makes th…
... I get a picture with random flickering and distortion.... the same ... -
Developing the Spectrum ROMI'm working on some Z80 assembler for a Z80-based single board computer that I'm building. For the things that don't poke my hardware, I'm using a Sp…
... working on some Z80 assembler for a Z80-based single board computer ... kit, perhaps on an earlier Z80 based microcomputer.
Anyone ... -
TapewormI've just been looking at some random games and came across [url=http://www.worldofspectrum.org/infoseek.cgi]Tapeworm[/url] not the most attractive g…
I've just been looking at some random games and came across [url=http://www.worldofspectrum.org/infoseek.cgi]Tapeworm[/url] not the most attractive game name -
Request info about Spectrum Live CD/BootHello, I've been looking for a linux live distribution with Spectrum emulator that allows me to put my z80,tap,sna etc files. [btw,for those that ar…
Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
I'm trying to work out how to represent the structure of a "sprite" in the SAM as
"Grabbed" by SmallC. I can see the assembler implementation but I can't follow it. If I can crack this in my mind it won't be hard to pull together an import/export ...Wanted: z80 asm routines...for the Sam. This call goes out to Colin and others who know how it should be done. If you look on the Sam C disk you can see the implementation…
...for the Sam.
This call goes out to Colin and others who know how it should be done.
If you look on the Sam C disk you can see the implementation of the streams mechanism.
I realise there is an outp( ) and inp
Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
... the 64k addressable by the z80. Why? Because Sam-C nicks ...The Frontier of Warriors DemoBack in 2000, I planned an adventure based on my sci-fi book series The Frontier of Warriors. As the stories were axed only to be restarted years lat…
... a C64 version and a Z80 snapshot of GAC running a ... saved it as a new Z80 file. (I have no idea ...TZX with GACBig favour to ask - if I sent a Z80 of my Frontier of Warriors demo revision, could they make a TZX of it for me please? Thanks.. It's a GAC snapsh…
Big favour to ask - if I sent a Z80 of my Frontier of Warriors demo revision, could they make a TZX of it for me please?
Thanks.. It's a GAC snapshot done using Spin.ex-YU Homepage UpdateHello all ! Just to let you know that I have made a huge update to my ex-YU 8-and-16 bit software homepage. This time is a complete redesign (it was…
... though) and Galaksija (a nice Z80 based computer from ex-YU ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
Blowtorch method of Speccy repairsI just did my first Spectrum repair (and successful at that). It was the Issue 2 spectrum I wrote about a while ago, I just hadn't got around to doin…
... the signal lines on the Z80 were doing the right thing ...PLanning ZX-PC Interface releasesHello everyone. I am working on some additional functions to the ZX-PC Interface. Might take a while before all functions are operational, but here …
... V
+---+ *===*
|TAP| |Z80|
+---+ *===*
... +---+ *===* +---+
|TAP| |SNA| |Z80|
+---+ *===* +---+
...Uridium on the Speccy: definitive version?Uridium is one of the staples of the C64 shoot-em-up canon. I first played it on the Speccy twenty years ago, but became much more familiar with it …
... vaguely blasphemous conclusion that the Z80 interpretation is better than the ...k7zx, a utility to load programs to Spectrum at very high speedk7zx is a windows program that convert .tap, .tzx , .sna and .z80 files to a wav file that can be played to a real Spectrum. You can down load it f…
... convert .tap, .tzx , .sna and .z80 files to a wav file ...public service announcementThis my 500th post. I just wanted a permanent record of it... Yeah, I know, it's a pointless post - but this is the random chit-chat forum... An…
This my 500th post.
I just wanted a permanent record of it...
Yeah, I know, it's a pointless post - but this is the random chit-chat forum...
AndrewNEW games for you chaps (and girls too) ;-)Okie, did some .TAP versions of NEW original games that were only released on TRDOS disk format. Some of you might have seen some (one or two are eve…
... /users/tomcat/yu/ReCracks/HexagonalFiller_128.z80[/url]
Kemshu:< ... /users/tomcat/yu/ReCracks/NinjaCommandoRemix_AY.z80[/url] (Ninja Commando)
[ ... /tomcat/yu/ReCracks/NightmareOnRobinsonStreetRemix+1_128.z80[/url] (Nightmare On Robinson Street ...ResiDOS v1.92 and +3e ROMs v1.30 releasedI've just updated ResiDOS to v1.92, and the +3e ROMs to v1.30. Full details can be found at: [URL="http://www.worldofspectrum.org/zxplus3e/"]http://…
... now loads snapshots in standard .Z80 and .SNA formats
[*] ... now saves snapshots in standard .Z80 (v1.45) format [Note ... non-standard ResiDOS snapshots into .Z80 format
[*]Hard disks/ ... plugs into the Spectrum's Z80 socket. This is supported by ...Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…
... 48K and 128K snapshots in .Z80/.SNA format
[*]Extends BASIC ... /> [*]Save 48K snapshots in standard .Z80 format
[*]Disks/cards can ...Learning z80 assembly - useful linksI'm starting here: [url]http://cobb.host.sk/z80guide/index.htm[/url] Anyone got any other great links?
I'm starting here:
[url]http://cobb.host.sk/z80guide/index.htm[/url]
Anyone got any other great links?I/O contention model questionHi everyone, Sorry for my poor english. Together with a friend we are working on ZX Spectrum 48k implemented in FPGA. We have found bug in the Spect…
... into ULA_. (because data from Z80 is valid during whole
Z80 probes data bus during T3 ...Completely trivial pointless question......but I can't help wondering why. I was clicking the Random Page button on the YSRNRY website, and was taken to the review of the Trap Door collect…
... />
I was clicking the Random Page button on the YSRNRY ...RealSpec screen$ saves?????Yeah ok, so how do I get RealSpec to save out a screen$ is the scr format? It's a good emulator, no doubt about it, but I just can't find an option …
... whole RAM contents as a Z80, SNA or whatever, but not ...+3 hardware without a fixer boardJust thinking about plugging random hardware into a +3 (from something mentioned on another thread), and I wondered... I know some hardware won't wor…
Just thinking about plugging random hardware into a +3 (from ...
